TULSA, Oklahoma - Broken Arrow firefighters say a floor furnace was likely the cause of a fire that killed three people Monday.

Father Shannon Wagers, 29; Kaylynn Wagers, 3 and Aris Wagers, 1, died in the fire. BAFD says the two children died shortly after arriving at the hospital, despite resuscitative efforts by firefighters and paramedics. 

They say the man was found next and pronounced dead at the scene. 

Firefighters say there were no working smoke detectors inside the house.